题目内容
I've ______ (never, ever) been to a chicken farm. I know nothing about it.
It's a difficult problem. You can ______ (hard, hardly) work it out in ten minutes.
Electricity（电） was said to be ______ (invented, discovered)by ancient Greeks long long ago.
English people usually ______ (bring, carry) umbrellas with them because of the rainy weather.
There will be a lecture on computer science in the school hall.
I'll ______ (attend, enter for) it.
